DOWNPIPE CATTED 2008 - 2018 STI / 2008 - 2013 WRX

Unknown Performance 3" Bell mouth 100 cell catted Downpipe will increase flow straight out of the turbo increasing gains in both torque and power for your EJ25.

Manufactured from S304 stainless mandrel piping, precision TIG welded, and brushed finish, this downpipe will bolt up directly to the stock/stock frame turbo and OEM or most aftermarket cat back systems.

Included is all the hardware including a laser cut stainless metal gasket for a bolt on fitment.